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| All Patents in class 475/3 | |||||
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| Picture | Number | Date | Patentee | Title | |
 | 13,634 | Oct. 09, 1855 | C. Bishop | Corn Sheller | |
| 168,955 | Oct. 19, 1875 | J.B. Annin | Differential Gear for Traction Engines | ||
 | 1,026,595 | May 14, 1912 | R. Milne | Feeding attachment for drill-spindles | |
 | 1,305,616 | Jun. 03, 1919 | N.H. Norris | Combination differential direct-power drive and friction-clutch pulley | |
 | 1,424,538 | Aug. 01, 1922 | C.A. Widmer | Drill press | |
| 2,933,986 | Apr. 26, 1960 | W. Schroeder | Spindle Control Mechanism | ||